Method and system for allocating frequency points

Abstract

The invention discloses a method and a system for allocating frequency points. Each radio remote unit (RRU) in the same cell is divided into more than two RRU groups. For each frequency point which is not allocated in the cell, the method comprises the following steps of: selecting one RRU group which is matched with the frequency point from the more than two RRU groups, wherein the RRU group which is matched with the frequency point is that the number of allocated frequency points in the RRU group is smaller than the largest frequency point number which can be supported by the RRU group; and allocating the frequency point to all the RRUs in the RRU group which is matched with the frequency point. By adopting the technical scheme of the invention, the cost of enlarging configurable frequency point ranges of cells can be reduced.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a method and system for allocating frequency points to remote radio units in the same cell. Background technique [0002] In the field of mobile communication, especially in the third-generation mobile communication network, a large number of distributed base station architectures are used, that is, the remote radio unit (RRU, Radio Remote Unit) and the baseband processing unit (BBU, Building Base band Unit) use optical fiber The base station architecture is composed of connections. In this architecture, one BBU can support multiple RRUs. Since the BBU can be installed in a suitable location in the computer room, and the RRU can be installed at the antenna end, the distributed base station architecture, which separates the BBU from the RRU, can be used to concentrate the cumbersome maintenance work on the BBU end. At the same time, due to a The BBU can support multiple RRUs. Th...

AI Technical Summary

Problems solved by technology

[0011] It can be seen that the prior art method of allocating frequency points to RRUs in the same cell makes the carrier frequency points supported by all RRUs in the cell exactly the same, which can be generated by the DSP in the BBU of the cell All frequencies, therefore, the configurable frequency range of the cell is the intersection of the frequencies supported by all RRUs in the cell. When it is necessary to expand the configurable frequency range of the cell to exceed the support of all RRUs in the cell When the intersection of the frequency points of the cell, it is necessary to replace all the RRUs in the cell, which makes the cost of expanding the configurable frequency range of the cell extremely high

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